# A - Kyu in AtCoder
def main():
    X = int(input())
    print(10 - X // 200)


if __name__ == "__main__":
    main() def main():
    X = int(input())
    print(10 - X // 200) main X = int(input()) X int(input()) int input() input print(10 - X // 200) print 10 - X // 200 10 X // 200 X 200 if __name__ == "__main__":
    main() __name__ == "__main__" __name__ "__main__" main() main def main():
    X = int(input())
    print(10 - X // 200) def main():
    X = int(input())
    print(10 - X // 200) main
# A - Kyu in AtCoder
def main():
    X = int(input())
    print(10 - X // 200)


if __name__ == "__main__":
    main()
